You will prepare and submit a term paper on African-American Population. Your paper should be a minimum of 750 words in length. The fact that there is an upsurge in the population growth of Austin, Texas from the time it was incepted, the declining rate of African-Americans is perplexing. Could it be an issue of racial segregation in zones such as education or employment?

US data on population found that there is a major decline in the American-American population in the city of Austin, Texas as compared to other major fast-growing cities in the United States. The outmigration of African-American residents in some cities was also experienced but such cities didn’t have the same general population growth rate as compared to Austin1. The findings are more troubling in Austin, Texas than other cities due to the fact that they emerge statistically outlier as compared to other cities.

Between the years 2000 and 2010, Austin was ranked as the third fastest-growing city in the United State of America. The declaration was a result of the population growing by double digits, precisely 20.4%. It can also be described as a major city due to the fact that it has a population of more than 500,000.

It was also reported by US census Data that African-Americans were the only racial group that declined in the period 2000-2010. Other major racial groups saw a positive population growth rate. the White increased by 10.9%, Hispanic increased by 38.5%, Asians increased by 60.8% while African-American decreased by -5.8%. This indicated that Austin was the major city that experienced a double-digit population growth rate (20.4%), yet it experienced a decline in American-American.

Create a 3 pages page paper that discusses the safety of airport security scanners.

In an article published in the PHYS.ORG on March 16, 2011 entitled “New articles examine safety of airport security scanners” the news report examined previous discourses written by David J. Brenner, Ph.D., D.Sc., director of the Center for Radiological Research at Columbia University Medical Center in New York, and that written by David A. Schauer, Sc.D., C.H.P., executive director of the National Council on Radiation Protection and Measurements (NCRP), regarding the safety of airport security scanners.

This article proffered the most balanced information on given that arguments on the potential radiation-induced cancer risks have been appropriately discussed using Brenner and Schauer’s contentions. In this regard, the mentioned news articles written by both Brenner and Schauer were aptly summarized with relevant issues emphasized to shed light on the subject.According to the article, there are currently two types of scanners used in airports to screen various travelers. The first type is the scanner that “employs millimeter wave technology, which delivers no ionizing radiation” [Rad11].

The other type is the scanner that “uses backscatter X-rays that expose the individual being screened to very low levels of ionizing radiation” [Rad11]. To determine the effect of low levels of ionizing radiation, one decided to confirm other studies on the subject and the article published in the ScienceDaily (2005) on low levels of ionizing radiation indicate that a report from the National Academies’ National Research Council have indicated that “the committee’s thorough review of available biological and biophysical data supports a “linear, no-threshold” (LNT) risk model, which says that the smallest dose of low-level ionizing radiation has the potential to cause an increase in health risks to humans” [Sci05].

This article confirmed the risks involved in low levels of ionizing radiation, however, since it was published in 2005, the reliability and applicability could be diminished.&nbsp.